John dickens



(No ModeL) J. DICKENS PUMP.

Patented J une 20,

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UNITED STATES PATENT OFFICE.

JOHN DICKENS, OF KINGSTON,-NEW JERSEY.

PUMP.

SPECIFICATION forming part of Letters Patent No. 259,673, dated June 20,1882. Application filed October 15, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN DICKENS, a citizen of the United States,residing at Kingston, in the county of Somerset and State of New Jersey,have invented certain new and useful Improvements in Pumps; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, reference being had'to the accompanying drawings,which'form part of this specification, and in which- Figure 1 is avertical elevation of pump. Figs. 2, 3, 5, and 6 are vertical sectionsof details; Fig. 4, a transverse section of valve on line 2 2, Fig. 2;and Fig. 7 is a section on line 1 1, Fig. 1.

My invention has relation to means for lifting water by the agency ofcompressed air; and my improvements consist in the peculiar constructionand combination of parts hereinafter described and specifically claimed.

A represents a cylinder, having a piston, B, one or more inlet-valves, aa, opening inwardly, and an outletvalve, 0, opening downwardly.

D is a pipe connected with the cylinder A, and havingcommunicationtherewith through the valveO.

E is another valve, located at the lower end of pipe D. Said valve has aspring, e,of sufficient strength to keep the valve closed until overcomeand opened by the pressure of compressed air in the pipe D above. Thestrength of this sprin g will be regulated by the extent to which theair is compressed, and this will be governed by the depth from which thewater requires to be lifted. The stem 0 of the valve E is made hollow,or formed with an internal opening, 6 which communicates by lateralpassages c. with other registering passages, e ,in the bodyE, so thatwhen the valve is closed atmospheric pressure from the outside will beexerted on the valve on its under side. WVhen the valve is opened thepassages e e do not register, as shown in Fig. 6, and externalatmospheric pressure is thus cut off from the under side of the valve.

F is a pipe extending downwardly from the valve E, andcommunicatin gwith a cylinder or chamber, G, which has an inwardly-opening valve, 9,and a discharge-opening, g. With this opening is connected a pipe,H,havin g an sired extent, so as to always fill whenever its contentsare discharged.

The operation is as follows: At every downstroke of the piston B air iscompressed in the cylinder A and forced into the pipe D, where itaccumulates until its pressure is sufficient to overcome and open thevalve E. As soon as said valve opens the compressed air escapes throughthe valve until the pressure in the pipe D is not strong enough to keepsaid valve open, whereupon it closes. The compressed air which passesthrough the valve E exerts its force upon the water in the pipe F, saidwater having entered through valve 9 and filled said pipe F, as well aspipe H, up to the surrounding water-level w. The pressure thus exertedcloses valve 9 and forces the water ahead from pipe F out of chamber Gand up pipe H, in which latter the water is prevented by valve h fromfalling. When the compressed air in pipe D has expanded so much as to beineffectual to hold valve E open, said valve closes and. the compressedair in pipe F escapes through'the openings 6 0 valve g opens, water isadmitted to chamber .G and fills pipe F. At every subsequent stroke ofthe piston a body of compressed air is forced into pipe D and acorresponding body forced into pipe F, acting upon the column of waterin latter and forcing it upwardly through discharge-pipe H, which iseventually filled and discharges at its upper end. i

What I claim as my invention is as follows:

1. The combination of an air-compressing cylinder or .chamber, A, with aconnectingpipe, D, forming a reservoir for a column of compressed air, aspring-valve, E, opening outwardly or downwardly, pipes F andH,andintermediate watersupply chamber, G, with valve g, substantially asshown and described.

2. The combination of an air-compressing cylinder or chamber, A, locatedabove a fluid to be lifted, a downwardly-extending pipe, D, locatedbelow and communicating with said valveis closed on its seat externalatmospheric pressure is admitted to its under side and 15 when saidvalve isopened or unseated such external pressure is out off,substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand"this 13th day of 20 October, 1881.

JOHN DICKENS.

Witnesses W. W. VAN DUYN, (l. VAN DUYN.

